Times for an ambulance to respond to a medical emergency in a certain town are normally distributed with a mean of 400 seconds and a standard deviation of 50 seconds.
Suppose there are 144 emergencies in that town.
in about how many emergencies are the response times expected between 350 seconds and 450 seconds?

i can you with this sweetie!

step-by-step explanation:

b.-4 units

all you   do is count how many times you move

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.

$15 each

step-by-step explanation:

$45/3 children= $15 each